M2012SS1G30 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The M2012SS1G30 is an NKK Switches toggle switch with SPDT (Single Pole Double Throw) configuration, rated for 0.4VA at 28V AC/DC. This through-hole, right-angle mounted switch features a standard round actuator with epoxy sealed terminals and operates across -30°C to 85°C. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	M2012SS1G30
Manufacturer	NKK Switches
Circuit Configuration	SPDT
Switch Function	On-On
Current Rating	0.4VA (AC/DC)
Voltage Rating (AC/DC)	28V
Mounting Type	Through Hole, Right Angle
Actuator Type	Standard Round
Actuator Length	10.50mm
Termination Style	PC Pin
Panel Cutout Dimensions	Circular - 6.50mm Dia
Bushing Thread	1/4-40
Operating Temperature Range	-30°C to 85°C
Electrical Life	50,000 Cycles
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the M2012SS1G30 is determined by the following critical parameters:

Core Electrical Requirements:

Circuit configuration: SPDT
Switch function: On-On
Current rating: 0.4VA minimum (AC/DC)
Voltage rating: Minimum 28V (AC/DC)

Mechanical Compatibility:

Actuator type: Standard Round
Termination style: PC Pin
Bushing thread: 1/4-40
Panel cutout: Circular configuration

Environmental & Compliance:

Operating temperature range: -30°C to 85°C minimum
RoHS3 compliance required

The substitute parts listed meet these core requirements with allowable variations in mounting type (panel mount vs. through-hole), panel cutout diameter, actuator length, electrical life, and ingress protection rating. Voltage ratings equal to or exceeding 28V are acceptable. Current ratings at or above 0.4VA are acceptable.

Parameter Comparison

Parameter	M2012SS1G30 (NKK)	34ASP11B1M6RT (Grayhill)	34BWSP11B1M6RT (Grayhill)	7101SYABE (C&K)	A123S1YAB (Electroswitch)
Circuit Configuration	SPDT	SPDT	SPDT	SPDT	SPDT
Switch Function	On-On	On-On	On-On	On-On	On-On
Current Rating (VA)	0.4	0.4	0.4	0.4	0.5
Voltage Rating - AC (V)	28	20	20	20	28
Voltage Rating - DC (V)	28	20	20	20	28
Actuator Type	Standard Round	Standard Round	Standard Round	Standard Round	Standard Round
Actuator Length (mm)	10.50	10.41	10.60	10.67	10.41
Termination Style	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin
Bushing Thread	1/4-40	1/4-40	1/4-40	1/4-40	1/4-40
Operating Temperature Range	-30°C to 85°C	-30°C to 85°C	-30°C to 85°C	-30°C to 85°C	-30°C to 90°C
Electrical Life (Cycles)	50,000	40,000	50,000	100,000	60,000
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

34BWSP11B1M6RT (Grayhill Inc., Series 34B)

This substitute provides the closest electrical and mechanical alignment with the M2012SS1G30. It maintains 0.4VA current rating, 50,000-cycle electrical life, and identical operating temperature range. The part is active in production with ROHS3 compliance. The 20V voltage rating is lower than the original 28V specification; applications operating at or below 20V AC/DC are suitable for direct substitution. The addition of IP67 ingress protection and epoxy sealed terminals provides enhanced environmental performance. Panel mount configuration requires mechanical redesign of the mounting interface.

7101SYABE (C&K, Series 7000)

This substitute offers superior electrical life (100,000 cycles) and maintains all core electrical parameters at 0.4VA. The 20V voltage rating limitation applies as noted above. The part is active with ROHS3 compliance. REACH status is listed as affected, requiring verification for applications subject to REACH regulations. Epoxy sealed terminals are included. Panel mount configuration requires mechanical redesign.

A123S1YAB (Electroswitch, Series A)

This substitute matches the original 28V voltage rating and exceeds current capacity at 0.5VA, providing margin for higher-load applications. Operating temperature extends to 90°C. The part is active with RoHS compliance. Moisture sensitivity level is listed as not applicable. Panel mount configuration requires mechanical redesign. Panel cutout dimensions are not specified in available data.

34ASP11B1M6RT (Grayhill Inc., Series 34A)

This substitute meets core electrical requirements at 0.4VA but has reduced electrical life (40,000 cycles) compared to the original 50,000-cycle rating. The 20V voltage rating limitation applies. The part is active with ROHS3 compliance. Panel mount configuration requires mechanical redesign.

Frequently Asked Questions (FAQ)

Q: Can I use a 20V-rated substitute in a 28V application?

A: No. The M2012SS1G30 is rated for 28V AC/DC operation. Substitutes with 20V ratings (34ASP11B1M6RT, 34BWSP11B1M6RT, 7101SYABE) are not suitable for circuits operating at 28V. Only A123S1YAB, rated for 28V, is appropriate for full voltage compatibility.

Q: What is the impact of panel mount versus through-hole mounting?

A: The M2012SS1G30 uses through-hole, right-angle mounting. All listed substitutes use panel mount, right-angle configuration. This requires mechanical redesign of the mounting interface and panel cutout. Verify panel cutout diameter compatibility: M2012SS1G30 requires 6.50mm circular cutout; substitutes require 6.35mm (except A123S1YAB, which does not specify cutout dimensions).

Q: Are all substitutes RoHS compliant?

A: Yes. The M2012SS1G30 is ROHS3 compliant. All substitutes meet RoHS requirements: 34ASP11B1M6RT, 34BWSP11B1M6RT, and 7101SYABE are ROHS3 compliant. A123S1YAB is RoHS compliant. Verify specific RoHS version requirements for your application.

Q: Which substitute has the longest electrical life?

A: The 7101SYABE (C&K) offers 100,000 cycles, compared to the original 50,000 cycles. The A123S1YAB provides 60,000 cycles, and 34BWSP11B1M6RT matches the original at 50,000 cycles. The 34ASP11B1M6RT has the lowest rating at 40,000 cycles.

Q: Does the M2012SS1G30 have ingress protection?

A: The original M2012SS1G30 does not specify an ingress protection rating. The 34BWSP11B1M6RT provides IP67 (dust tight, waterproof) protection, offering enhanced environmental sealing. Other substitutes do not specify ingress protection ratings.

Q: What is the difference between epoxy sealed terminals and standard PC pins?

A: Epoxy sealed terminals provide enhanced protection against moisture and contamination. The M2012SS1G30, 34BWSP11B1M6RT, 7101SYABE, and A123S1YAB all feature epoxy sealed terminals. The 34ASP11B1M6RT does not specify this feature.

Q: Are actuator length variations significant?

A: Actuator lengths range from 10.41mm to 10.67mm across all parts. The M2012SS1G30 is 10.50mm. These variations are within typical mechanical tolerances for standard round actuators and do not affect functional compatibility in most applications. Verify clearance in your specific mechanical design.

Q: What is the REACH status impact?

A: The M2012SS1G30 has REACH unaffected status. The 7101SYABE lists REACH status as affected, requiring verification for applications subject to REACH regulations. Other substitutes have REACH unaffected or vendor undefined status. Confirm REACH compliance requirements for your end application.

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